<?php
/**
 * Class Minify_Logger
 * @package Minify
 */

/**
 * Message logging class
 *
 * @package Minify
 * @author Stephen Clay <steve@mrclay.org>
 */
class Minify_Logger {

	/**
	 * Set logger object.
	 *
	 * The object should have a method "log" that accepts a value as 1st argument and
	 * an optional string label as the 2nd.
	 *
	 * @param mixed $obj or a "falsey" value to disable
	 * @return null
	 */
	public static function setLogger($obj = null) {
		self::$_logger = $obj
		? $obj
		: null;
	}

	/**
	 * Pass a message to the logger (if set)
	 *
	 * @param string $msg message to log
	 * @return null
	 */
	public static function log($msg, $label = 'Minify') {
		if (! self::$_logger) return;
		self::$_logger->log($msg, $label);
	}

	/**
	 * @var mixed logger object (like FirePHP) or null (i.e. no logger available)
	 */
	private static $_logger = null;
}
